Did you know that one mosquito bite can transmit heartworms to your dog? Holt Animal Hospital uses the most accurate and reliable heartworm tests available to determine whether or not your four-legged friend may have heartworm disease. Prior to prescribing a preventative, your animal should be diagnosed negative for heartworm disease. Our tests take only ten minutes and you can have peace of mind before you leave our clinic. After testing, Dr. Holt will be able to determine which heartworm preventative is best for your pet!